General Pump
Parts

General Pump Parts: Jack's is your place. We have the General Pump Parts you need for your pressure washers. Select a category below to find a replacement pressure washer hose, spray gun, pump, and more.

Popular
General Pump Parts

Adjustable relief valve
The pressure relief valve is a safety device on the pressure washer. When a pre-determined pressure is reached within the system, the valve opens and releases water into the atmoshpere, or back into the line. The pressure relief valve is normally a second line of safety defense when used in conjunction with an unloader. It can also be used as the sole pressure safety device when installed in an open gun system.
PRESET AT 1000 PSI One model fits all pressures...no springs to change Less "whistling" and chatter than competing brands Highly accurate over full range of pressures Designed and made in the USA

Hose barb: 90 1/4"
Protects the pump from damaging heat build up while it is in bypass mode. The thermal relief valve, sensing a rise in temperature opens and discharges a small amount of heated fluid. This allows cooler water to enter the system and cool the pump. When the gun is discharged the cooler water will cause the valve to close immediately.
Most consistent temperature range on the market Quickest response to rising temperature Less stress on the pump Shorter overall length Most cost effective thermal protector on the market Mounts easily in the pump manifold, inlet water supply or bypass loop plumbing.

Hose barb: 90 1/4"
Protects the pump from damaging heat build up while it is in bypass mode. The thermal relief valve, sensing a rise in temperature opens and discharges a small amount of heated fluid. This allows cooler water to enter the system and cool the pump. When the gun is discharged the cooler water will cause the valve to close immediately.
Most consistent temperature range on the market Quickest response to rising temperature Less stress on the pump Shorter overall length Most cost effective thermal protector on the market Mounts easily in the pump manifold, inlet water supply or bypass loop plumbing.

Hose barb: 90 1/4"
Protects the pump from damaging heat build up while it is in bypass mode. The thermal relief valve, sensing a rise in temperature opens and discharges a small amount of heated fluid. This allows cooler water to enter the system and cool the pump. When the gun is discharged the cooler water will cause the valve to close immediately.
Most consistent temperature range on the market Quickest response to rising temperature Less stress on the pump Shorter overall length Most cost effective thermal protector on the market Mounts easily in the pump manifold, inlet water supply or bypass loop plumbing.